The Diversity Of Humans: The Adaptation Of Differences In Humans

The physical differences in humans have been around a long time. This population multiplied and spread around the world and ended up replacing the present population elsewhere. The diversity of traits is an advantage and this is true for any species. In fact, we as human beings are quite homogeneous. Initially we were a single population relatively small, and we ended up extending from East Africa, in a short time in terms of the evolutionary scale. As we expand, we had to adapt to the local environment, and move around from one climate to many different climates. For differences we may observe today, it seems that we are different, but these differences are superficial and basically they are a reflection of the adaptation of climates.

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The color of the eyes or skin seems to us an important difference between people. But, it is a superficial difference, compared to the differences between all other species. Differences in facial traits match adapting each group had to make to different climates: which the sun 's intensity is higher, is most helpful darker skin or where the wind blows, the slanted eyes are more useful. Despite this homogeneity, the diversity between humans exists, because it is a guarantee of survival. The skin color seems a huge difference, being so obvious prevailing dark color, since it is an even color, and little wrinkles perishable. For example, most people who live in Africa are darker skin and skins in Europe are mainly lighted skin; and elsewhere are mostly darker skin. I think the skin color of the original settlers was

I think in some way we - the women - want to feel that security to our partners, instead of feeling that we are the ones who protect them. That 's an important reason why women are attracted more men are taller than them, not to mention may be better physical condition and therefore healthier. Based on this there was also an adaptation to climate, because in cold weather is important to keep the internal heat, and where heat causes is more important to have a body to lose heat easily, so the body is slimmer, also the arms and even longer legs and northern people are likely to be more round and have shorter arms. Males are biologically programmed to spread their genes with the more female possible, while the females seek the males with the best genetics for transmitting to their offspring, this also occurs of humans. Similarly, women in the fertile period and casual encounters, women tend to choose men of distinctly masculine physical characteristics, while in non-fertile stages and stable relationships; they tend to choose men less masculine characteristics. Besides to this, a significant number tends to take into account the economic status as the cultural factor. Similarly, many human behaviors not clearly linked to survival benefits, like humor, music, visual art, and verbal creativity are adaptations courtship have been favored by sexual selection. However, the role of sexual selection on human evolution